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Search: Posts Made By: Robert Groves
Showing results 1 to 25 of 201
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06-03-2014, 05:07 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Have done about 20 flights now on the Mustang and...

Have done about 20 flights now on the Mustang and loving this plane!
i still battle with top end revs on the DLE 20 due to buffering it seems and finally did this mod on the carb yesterday.
Once...
Forum: Gas Engines
02-17-2014, 12:56 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

ok so engine not overheating now and not cutting...

ok so engine not overheating now and not cutting out which is a huge improvement.
Not able to get the engine to hit peak rpm easily, but may be a bit rich.... if not its pressure...

Does the 3:1...
02-17-2014, 12:52 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Yes does look a bit more scale! Ok so the...

Yes does look a bit more scale!

Ok so the mod seems to work great. had a flight in swealtering heat yesterday and the engine was definitely not getting too hot, felt it on landing and it wasn't...
02-11-2014, 01:17 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

:) it does a bit..... but does it WORK ? hahaha ...

:) it does a bit..... but does it WORK ? hahaha
Im yet to test... it took me a week to figure out how to attach the covers and vents, in the end i chopped the half heads off cable ties to make a...
Forum: Gas Engines
02-11-2014, 01:01 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

I have yet to test it, but under the lovre, is...

I have yet to test it, but under the lovre, is completely open, i cut the hole as big as the vent rectangle... so definitely have 3 times the exit..
ill keep you posted and posted some with it on...
Forum: Gas Engines
02-07-2014, 03:29 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

ok so i got around to a mod yesterday... ...

ok so i got around to a mod yesterday...

Thanks Ron, I was unaware of the cowl on cowl off tuning until this issue, im new to gas. I have forgotten my ideas of a holeless cowl with this issue and...
02-07-2014, 03:21 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

ok so i got around to a mod yesterday... ...

ok so i got around to a mod yesterday...
before.......
01-31-2014, 02:03 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

I think my hole in the middle is actually an "in"...

I think my hole in the middle is actually an "in" opposed to the "out i was hoping for due to the angle of the cowl..
I am going to do the pooling on both outlets to create a low pressure and see if...
Forum: Gas Engines
01-29-2014, 11:21 PM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

thanks for all the info... theres a lot to...

thanks for all the info... theres a lot to consider. I have never had to do any of this...
How are those fin baffles attached and is that wood Windsurfa?

@Rbean thank you so much, you have...
01-29-2014, 04:15 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

maybe blocking the firewall was a bad idea. are...

maybe blocking the firewall was a bad idea. are you saying open it up, put in the radiator(hope i still have it) and allow air through the fuse.
this would reduce pressure for sure... and and allow...
Forum: Gas Engines
01-29-2014, 04:10 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

thank you both for the input, ill do my homework...

thank you both for the input, ill do my homework and make some changes and report back.
Forum: Gas Engines
01-28-2014, 02:32 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

thanks Alan, Just posted them on the mustang...

thanks Alan,

Just posted them on the mustang thread, but here they are again...
Im new to gas, can you explain the ram effect?

In the last pic, yop can see the firewall closed off with balsa...
01-28-2014, 02:27 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

do i have enough exit airflow do you think? ...

do i have enough exit airflow do you think?
...
Forum: Gas Engines
01-27-2014, 02:04 AM
Replies: 6,892
Views: 1,136,898
Posted By Robert Groves

Hi Everyone. I have a DLE20 using a CRM-6...

Hi Everyone.

I have a DLE20 using a CRM-6 plug which has had about 15 flights so still new. Ive had no problems with the engine whatsoever, being new to gas this is my first and I am/was liking it...
01-27-2014, 01:31 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

maximum rpm cowl off is 9700..... think this is...

maximum rpm cowl off is 9700..... think this is too high ... using APC 16x6 as a break in prop which is supposed to be the standard prop to use.

Another flight yesterday, this time i tuned with...
01-25-2014, 05:12 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

make cowl pressure is changing.. ...

make cowl pressure is changing..

http://www.grosbeakrc.ca/hangar/pulse125/modifications/equalization.html

? any thoughts?
01-25-2014, 04:14 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

ok so 2 flights today, CG @ 5", flaps 2 rates...

ok so 2 flights today, CG @ 5", flaps 2 rates about 22mm and 42mm, elevator up (7% and 15%) works just fine.
The greasing doesnt get smoother than that :)

I have aproblem though, cowl off - hots...
01-23-2014, 01:43 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

good luck with the sback.... check out the thread...

good luck with the sback.... check out the thread in Flying giants.
(Wont let me post the URL)
30CC Slipstream Sbach Assembly

I am waiting on the engine for mine. (slipstream 30cc)...
01-22-2014, 04:36 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Hi Bob, Is there a reaon you are moving the...

Hi Bob,

Is there a reaon you are moving the tank all the way forward? Why not keep it close to the CG? Ive noticed a difference with full vs empty tank and mine is right up against the wing tube....
01-21-2014, 01:44 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Thanks tclaridge. What are your full flaps set...

Thanks tclaridge.
What are your full flaps set at?
Don't you notice the nose dropping heavily?
I agree she is rock solid, loving this plane, just am battling on landings,. I am finding I have to...
01-20-2014, 12:50 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Forgot to mention the weight which is in at a...

Forgot to mention the weight which is in at a whopping 11.24 pounds (5.1kg)
01-20-2014, 12:36 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

Hi Bob .... or anyone :) I had my third...

Hi Bob .... or anyone :)

I had my third flight with the P-51 today and its getting better and better. (ripped the wheel off on flight no 2)

I moved the CG back to 5" (wheels down) for this...
01-10-2014, 03:43 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

thanks kwikbob. Yes Ive discovered it...

thanks kwikbob.

Yes Ive discovered it depends on the prop.
My 16x6 was a great break in prop turning @ around 9000. (Evolution prop)
the 16x6 MAS -K-series turned way up at 10300... very...
01-09-2014, 02:11 AM
Replies: 2,011
Views: 296,552
Posted By Robert Groves

what props are recommended with the DLE for this...

what props are recommended with the DLE for this plane.
I am thinking of going up to a 17" as the spinner is so big, maybe a 17x6?
Ive heard revving beyond 9000 is bad for the crank pin and it...
Forum: ARF or RTF
01-06-2014, 01:02 AM
Replies: 8,173
Views: 872,748
Posted By Robert Groves

Al ..... thanks for the redundancy ideas. I...

Al ..... thanks for the redundancy ideas.
I have implemented in my mustang and will go into my 3D sbach i am building now.
I run ignition and rx fro 1 battery which has connectors on it.
I ran the...
Showing results 1 to 25 of 201
 


 
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